The SDHmini should be placed on a stable surface prior to connecting to the
sample pipework. Care should be taken to ensure that the sample presented to the
SDHmini is not contaminated with any component that will damage, contaminate
or affect in a way that will impair the unit’s accuracy.
The flow rate, although not critical to the sensor measurement, should be low
enough to avoid abrasion to the sensor surface without being so low as to extend
the SDHmini response time to an unacceptable level. In general, a flow rate of
between 2 and 5 litres/min at normal temperature and pressure will give the right
balance.
The SDHmini is designed to operate at atmospheric pressure with a maximum of
0.3 bar.
3.3 Piping Installation Schematic
8
MAIN
PROCESS
LINE
1
3
2
4
5
6
7
8
9
a.
b.
The sample point should be on the upper surface of the horizontal
pipe or from a vertical section of pipe, wherever possible.
The sample tube should run upwards from the sample point. If
this is not possible, then an inspection port or drain tap should be
installed at the lowest point in the sample system.
Notes
